Aldrich, R. J. (1984). Weed-crop ecology. Breton Publishers.
Chicago-čujuhus (17. p.)Aldrich, Richard James. Weed-crop Ecology. North Scituate, Mass.: Breton Publishers, 1984.
MLA-čujuhus (9. p.)Aldrich, Richard James. Weed-crop Ecology. Breton Publishers, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.